improve probe logging

[stehessel]

Description

Small improvement of the probe logging:

• Remove warnings emitted frequently while the probe is waiting for the instance to be ready/deleted. This warning creates a lot of spam in the logs.
• Log target configuration when a probe run starts.

Checklist (Definition of Done)

• Unit and integration tests added
• Added test description under Test manual
• Documentation added if necessary (i.e. changes to dev setup, test execution, ...)
• CI and all relevant tests are passing
• Add the ticket number to the PR title if available, i.e. ROX-12345: ...
• Discussed security and business related topics privately. Will move any security and business related topics that arise to private communication channel.

[dhaus67]

While we're at it, in the past when dealing with failing probe runs, the error messages for e.g. creation request failing where something along the lines of:

central creation failed: 403 forbidden

It would make initial triaging a lot faster when we could also print the error message within the logs contained within the http.Response we receive. OK for me to do this in a follow-up PR (I'm also open to change this if you don't feel like it right now since we are all relying on the probe service one way or another :) ).

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dhaus67, stehessel

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[stehessel]

I'm also open to change this if you don't feel like it right now since we are all relying on the probe service one way or another :)

I'd appreciate that, thanks :)